CN215858619U

CN215858619U - Steel bar connector

Info

Publication number: CN215858619U
Application number: CN202120176198.4U
Authority: CN
Inventors: 刘建礼; 龚香玲; 刘畅; 刘通
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2022-02-18
Anticipated expiration: 2031-01-22

Abstract

Compared with the prior similar reinforcing steel bar connecting device, the reinforcing steel bar connector has the advantages of simple structure, practicability, easy operation, low cost and the like. The connector can be used for connecting reinforcing steel bars and can also be used for splicing and installing assembly type buildings and finished members. Has great popularization significance. The utility model mainly comprises an upper cap, a lower cap, a connector and a special clamp spring. The connection principle is as follows: utilize the arc or the inclined plane of connector to turn into the horizontal power with the vertical power of butt joint reinforcing bar, reach and easily break away special jump ring, reach spacing back at the connector, special jump ring just blocks "neck" of connector, utilizes the self shrink power of special jump ring to fix the connector card jail to realize that the reinforcing bar is light at the scene and connect. When the steel bar connector is installed, epoxy resin is injected into the upper cap and the lower cap, so that the tensile force and the durability of the steel bar connector can be improved.

Description

Steel bar connector

Technical Field

The utility model belongs to building hardware or mechanical hardware in the field of building engineering, in particular to a reinforcing steel bar connector; the problem that the steel bars are quickly and simply connected with high quality on a construction site is solved; particularly provides core technical support for the building of building blocks on site for finished products such as prefabricated components, integral decorative components and the like. The method solves the problems of various limitations of field operation of the construction engineering, and can accelerate the progress of industrialization and modernization of the building.

Background

In recent years, the nation proposes a new concept of developing assembly type buildings, and in order to reduce the influence of construction engineering on the surrounding environment and safety, a new industrial construction concept of factory prefabrication and field assembly construction is required. To realize the industrialization of construction, the problems that a large amount of work such as binding, welding, threading, grouting and the like of reinforcing steel bars which can only be finished on site at present are carried to a factory to be finished under the premise of ensuring high quality and high efficiency, and the components are only required to be simply assembled when being transported to the site must be solved. The utility model is specially invented for improving the working efficiency, saving the construction cost and reducing the potential safety hazard of a construction site.

This patent and the latest steel bar connection patent at present can fill up following not enough, so have more practical value:

disclosure of Invention

The utility model aims to solve the problem that the stressed steel bars in the building engineering and the fabricated building can be simply and quickly mechanically connected on site by utilizing lower cost of the steel bar connector. The steel bars and finished components which are processed and prefabricated in factories can be simply butted on site. The utility model not only can ensure the connection quality of the steel bars, but also solves the problem of the axle center stress consistency of the butted steel bars, and greatly improves the working efficiency of the construction of the building engineering.

The utility model mainly comprises an upper cap (2), a lower cap (5), a connector (3) and a special clamp spring (4). The connection principle is as follows: the axial force of the reinforcing steel bar (1) is converted into horizontal thrust by using the semicircular arc surface (or conical surface) of the connector (3), the special clamp spring (4) is opened, and after the connector reaches a limit position, the neck of the connector (3) is just clamped by the clamp spring by using the self contraction force of the special clamp spring (4), so that the connection of the reinforcing steel bar (1) on the site is easily realized.

The utility model mainly adopts the expansion and contraction of the special clamp spring (4) to realize the connection of the steel bar connector.

The connector (3) is a semicircular surface or a conical surface, can convert vertical force of butted steel bars into transverse force, and downwards pushes away a special clamp spring (4) in a lower cap (5).

The neck of the connector (3) is designed by adopting a locking non-return surface (66) which is vertical to the central axis of the steel bar (1) (see the attached figure 2), so that the clamping of the special clamp spring (4) and the connector (3) can be realized.

The shapes of the upper cap (2) and the lower cap (5) can be circular, triangular, square and hexagonal section patterns.

The cross section of the connector (3) can be in a circular, triangular, square or hexagonal cross section.

The mechanical property of spring steel adopted by the special clamp spring (4) is 3-5 times that of common steel bars, and the safety of steel bar anchoring can be fully ensured according to the calculated thickness required by the stress of the special clamp spring (4).

Drawings

Fig. 1 is a schematic view showing the construction of a reinforcing bar coupler according to the present invention.

Fig. 2 is a schematic diagram showing the state before the connector is punched into the snap spring when the steel bar (or member) is connected and pushed downwards.

Fig. 3 is a schematic diagram of the state of the connector when the clamp spring is expanded before the connector is flushed into the clamp spring.

Fig. 4 shows that after the connector reaches a limit position, the clamp spring just clamps the neck of the connector by using the self-contraction force of the clamp spring, and the steel bars are easily and quickly connected on site. The steel bar is shown after being successfully connected.

Fig. 5 is a schematic plan view and a schematic three-dimensional view of the special clamp spring.

Fig. 6 is a schematic diagram of a clamp spring that can be referred to by the existing special clamp spring.

FIG. 7 is a schematic diagram of an invention patent number CN 112127551A published on similar inventions at 202, 12, 25.

Fig. 8 is a schematic diagram of a patent of the prior art similar invention, which is published on 11/13/2020, and is CN 111927105 a.

Fig. 9 is a schematic diagram of a patent of the prior art similar invention, which is published on 11/13/2020, and is CN 111927000 a.

Fig. 10 is a schematic diagram of a prior art patent application, CN 112127550 a, published on similar invention 2020, 12/25.

Fig. 11 is a schematic diagram of a patent of the prior art similar to the utility model disclosed in patent No. CN 111535508A at 14/08/2020.

Fig. 12 is a standard drawing of a standard design structure of a building in Zhejiang province, which is a drawing of a pile connecting main rib connecting piece in 2016 Zhejiang G32 pre-tensioned mechanical connection prestressed concrete bamboo joint pile.

Detailed Description

The steel bar (1) is connected with the upper cap (2) and the lower cap (5) by pier heads (or threads); before the upper cap (2) is provided with the connector (3), a proper amount of epoxy resin is injected into the upper cap (6), and the upper cap (2) is connected with the connector (3) by threads; an inner hole clamp spring clamp is adopted to install the special clamp spring (4) into a clamping groove of the lower cap (5); before the on-site steel bar connection, a proper amount of epoxy resin is injected into the lower cap (6); the connector (3) utilizes arc (or inclined plane) to turn into the horizontal power with the vertical power of butt joint reinforcing bar, and special jump ring (4) in cap (5) down "dashes open" impels, impels to reach spacing back, and special jump ring (4) utilize self elastic shrinkage, block "the neck" of connector (3), play the purpose of connecting reinforcing bar (1).

The upper cap and the lower cap (6) can be connected without injecting epoxy resin.

Prefabricated componentThe implementation steps of the steel bar connection are as follows:

1. upsetting the connecting end of the steel bar (1) to be butted;

2. when the prefabricated part is manufactured in a factory, pier head reinforcing steel bars (1) provided with the upper cap (2) and the lower cap (5) are embedded into the prefabricated part according to design. The upper cap (2) and the lower cap (5) are protected to prevent sundries such as concrete and the like from entering the caps;

3. when the vertical steel bars (1) are connected, the upper cap (2) is generally arranged above, and the lower cap (5) is arranged below. When the horizontal steel bars (1) are connected, the upper cap (2) and the lower cap (5) can be arranged at the two ends of the joint, but the installation is convenient and the rules are unified;

4. before the prefabricated part is installed on site, epoxy resin is injected into the upper cap (6), and the threaded connector (3) is installed;

5. before the prefabricated part is installed on site, the special clamp spring (4) is installed in a clamping groove of the lower cap (5) by adopting an inner hole clamp spring clamp;

6. when the on-site steel bars (1) are connected, a proper amount of epoxy resin is injected into the lower cap (6);

7. the steel bars (1) are connected, the connector (3) converts vertical force of the butted steel bars into transverse force by utilizing an arc (or an inclined plane), a special clamp spring (4) in the lower cap (5) is downwards opened, after the special clamp spring is pushed to reach a limit position, the special clamp spring (4) elastically contracts by utilizing the self to clamp the neck part of the connector (3), and the purpose of connecting the steel bars (1) is achieved;

8. the steel bars (1) are successfully connected.

Cast-in-place concreteThe implementation steps of the steel bar connection are as follows:

1. upsetting the connecting end of the steel bar (1) to be butted;

2. according to the specific construction sequence, the pier head reinforcing steel bars (1) with the upper caps (2) and the lower caps (5) are respectively put into site construction. The upper cap (2) and the lower cap (5) are protected to prevent sundries such as concrete and the like from entering the caps;

4. before the on-site connection of the steel bars (1), epoxy resin is injected into the upper cap (6), and the threaded connector (3) is installed;

5. before the on-site connection of the steel bars (1), a special clamp spring (4) is installed in a clamp groove of a lower cap (5) by using an inner hole clamp spring clamp;

8. the steel bars (1) are successfully connected.

Claims

1. A steel bar connector is characterized in that: mainly comprises an upper cap (2), a lower cap (5), a connector (3) and a special clamp spring (4); the two steel bars (1) are respectively connected with the upper cap (2) and the lower cap (5) by pier heads or threads; the upper cap (2) is connected with the connector (3) by threads; the special clamp spring (4) is arranged in a clamping groove of the lower cap (5); the connector (3) is a semi-arc surface or a conical surface.

2. The reinforcing bar coupler according to claim 1, wherein: the special clamp spring (4) can be unfolded and contracted to realize the connection of the steel bar connector.

3. The reinforcing bar coupler according to claim 1, wherein: the neck of the connector (3) is designed by a locking non-return surface (66) perpendicular to the central axis of the steel bar (1), so that the special clamp spring (4) can be guaranteed to be clamped and connected with the connector (3).

4. The reinforcing bar coupler according to claim 1, wherein: the shapes of the upper cap (2) and the lower cap (5) can be circular, triangular, square and hexagonal section patterns.

5. The reinforcing bar coupler according to claim 4, wherein: the shape of the cross section of the connector (3) is matched with the shapes of the upper cap (2) and the lower cap (5).